Prof Ng defines z as z = w.x + b; however he doesn’t give the interpretation of this variable z. In linear regression it is pretty intuitive that we are taking a training example as an input and projecting it’s output on a graph using our pre-defined linear/polynomial regression model ( f(x) =w.x +…

Definition and interpretation of z in logistic regression

shanup June 23, 2022, 7:30pm 2

Welcome to the community.

Here is the reference to an article that explains what “z” is. Do let me know if this gives you the clarity.